Trace number 2080922

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
pcs-restart 0.3.2? (MO) 419.45 421.349

General information on the benchmark

Namecsp/langford3/
normalized-langford-3-20.xml
MD5SUMfec005d2a500e2d8486cf239a4a9cc0f
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of constraints1810
Maximum constraint arity2
Maximum domain size60
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1810
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.18/0.23	c Seed is 314682676
0.18/0.23	c Constructing HOME/instance-2080922-1247719085.xml 
0.18/0.23	c deduced all_different(V1,V2,V3,V4,V5,V6,V7,V8,V9,V10,V11,V12,V13,V14,V15,V16,V17,V18,V19,V20,V21,V22,V23,V24,V25,V26,V27,V28,V29,V30,V31,V32,V33,V34,V35,V36,V37,V38,V39,V40,V41,V42,V43,V44,V45,V46,V47,V48,V49,V50,V51,V52,V53,V54,V55,V56,V57,V58,V59,V0)
0.18/0.23	c  with 1811 constraints
0.18/0.23	c Solving

Verifier Data 

ERROR: Unexpected answer ! ('s SATISFIABLE'/'s UNSATISFIABLE' expected)
Got answer: <no 's ' line found>

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2080922-1247719085/watcher-2080922-1247719085 -o /tmp/evaluation-result-2080922-1247719085/solver-2080922-1247719085 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 314682676 HOME/instance-2080922-1247719085.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.00 2.00 4/75 18763
/proc/meminfo: memFree=1355696/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=18576 CPUtime=0
/proc/18763/stat : 18763 (runsolver) R 18761 18763 17311 0 -1 4194368 15 0 0 0 0 0 0 0 22 0 1 0 58971171 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 209560595751 0 0 4096 24578 0 0 0 17 1 0 0
/proc/18763/statm: 4644 284 249 26 0 2626 0

[startup+0.0571621 s]
/proc/loadavg: 2.00 2.00 2.00 4/75 18763
/proc/meminfo: memFree=1355696/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=4808 CPUtime=0.03
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 865 656 0 0 3 0 0 0 18 0 1 0 58971171 4923392 496 996147200 134512640 135215973 4294956304 18446744073709551615 134761742 0 0 4096 0 0 0 0 17 1 0 0
/proc/18763/statm: 1202 496 384 171 0 127 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 4808

[startup+0.101168 s]
/proc/loadavg: 2.00 2.00 2.00 4/75 18763
/proc/meminfo: memFree=1355696/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=5352 CPUtime=0.08
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 1026 656 0 0 8 0 0 0 18 0 1 0 58971171 5480448 657 996147200 134512640 135215973 4294956304 18446744073709551615 134660032 0 0 4096 0 0 0 0 17 1 0 0
/proc/18763/statm: 1338 657 408 171 0 263 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5352

[startup+0.301201 s]
/proc/loadavg: 2.00 2.00 2.00 4/75 18763
/proc/meminfo: memFree=1355696/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=5480 CPUtime=0.27
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 1079 656 0 0 27 0 0 0 19 0 1 0 58971171 5611520 710 996147200 134512640 135215973 4294956304 18446744073709551615 9199238 0 0 4096 0 0 0 0 17 1 0 0
/proc/18763/statm: 1370 710 408 171 0 295 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5480

[startup+0.70127 s]
/proc/loadavg: 2.00 2.00 2.00 4/75 18763
/proc/meminfo: memFree=1355696/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=6392 CPUtime=0.67
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 1297 656 0 0 67 0 0 0 23 0 1 0 58971171 6545408 928 996147200 134512640 135215973 4294956304 18446744073709551615 9163042 0 0 4096 0 0 0 0 17 1 0 0
/proc/18763/statm: 1598 928 408 171 0 523 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6392

[startup+1.5014 s]
/proc/loadavg: 2.00 2.00 2.00 3/76 18768
/proc/meminfo: memFree=1352744/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=8220 CPUtime=1.46
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 1722 656 0 0 146 0 0 0 25 0 1 0 58971171 8417280 1353 996147200 134512640 135215973 4294956304 18446744073709551615 134599879 0 0 4096 0 0 0 0 17 1 0 0
/proc/18763/statm: 2055 1353 408 171 0 980 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 8220

[startup+3.10168 s]
/proc/loadavg: 2.00 2.00 2.00 3/76 18768
/proc/meminfo: memFree=1349992/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=12520 CPUtime=3.06
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 2817 656 0 0 305 1 0 0 25 0 1 0 58971171 12820480 2415 996147200 134512640 135215973 4294956304 18446744073709551615 9168507 0 0 4096 0 0 0 0 17 1 0 0
/proc/18763/statm: 3130 2415 408 171 0 2055 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 12520

[startup+6.30122 s]
/proc/loadavg: 2.00 2.00 2.00 3/76 18768
/proc/meminfo: memFree=1342120/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=18780 CPUtime=6.24
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 4466 656 0 0 623 1 0 0 25 0 1 0 58971171 19230720 3999 996147200 134512640 135215973 4294956304 18446744073709551615 4158960064 0 0 4096 0 0 0 0 17 1 0 0
/proc/18763/statm: 4695 3999 408 171 0 3620 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 18780

[startup+12.7013 s]
/proc/loadavg: 2.00 2.00 2.00 3/76 18768
/proc/meminfo: memFree=1325232/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=34832 CPUtime=12.61
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 8573 656 0 0 1257 4 0 0 25 0 1 0 58971171 35667968 7944 996147200 134512640 135215973 4294956304 18446744073709551615 4158960071 0 0 4096 0 0 0 0 17 1 0 0
/proc/18763/statm: 8708 7944 408 171 0 7633 0
Current children cumulated CPU time (s) 12.61
Current children cumulated vsize (KiB) 34832

[startup+25.5015 s]
/proc/loadavg: 2.00 2.00 2.00 3/76 18768
/proc/meminfo: memFree=1295024/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=62868 CPUtime=25.35
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 15802 656 0 0 2528 7 0 0 25 0 1 0 58971171 64376832 14851 996147200 134512640 135215973 4294956304 18446744073709551615 9199189 0 0 4096 0 0 0 0 17 1 0 0
/proc/18763/statm: 15717 14851 408 171 0 14642 0
Current children cumulated CPU time (s) 25.35
Current children cumulated vsize (KiB) 62868

[startup+51.1018 s]
/proc/loadavg: 2.00 2.00 2.00 3/76 18768
/proc/meminfo: memFree=1236144/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=117680 CPUtime=50.82
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 29953 656 0 0 5068 14 0 0 25 0 1 0 58971171 120504320 28489 996147200 134512640 135215973 4294956304 18446744073709551615 4158960707 0 0 4096 0 0 0 0 17 1 0 0
/proc/18763/statm: 29420 28489 408 171 0 28345 0
Current children cumulated CPU time (s) 50.82
Current children cumulated vsize (KiB) 117680

[startup+102.306 s]
/proc/loadavg: 1.95 1.98 1.99 3/76 18906
/proc/meminfo: memFree=1354808/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=237944 CPUtime=101.78
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 60869 656 0 0 10146 32 0 0 25 0 1 0 58971171 243654656 58251 996147200 134512640 135215973 4294956304 18446744073709551615 134627180 0 0 4096 0 0 0 0 17 0 0 0
/proc/18763/statm: 59486 58251 408 171 0 58411 0
Current children cumulated CPU time (s) 101.78
Current children cumulated vsize (KiB) 237944

[startup+162.303 s]
/proc/loadavg: 1.98 1.98 1.99 3/76 18906
/proc/meminfo: memFree=1217464/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=368396 CPUtime=161.52
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 94582 656 0 0 16101 51 0 0 25 0 1 0 58971171 377237504 89658 996147200 134512640 135215973 4294956304 18446744073709551615 134583364 0 0 4096 0 0 0 0 17 0 0 0
/proc/18763/statm: 92099 89658 408 171 0 91024 0
Current children cumulated CPU time (s) 161.52
Current children cumulated vsize (KiB) 368396

[startup+222.302 s]
/proc/loadavg: 1.99 1.98 1.99 3/76 18906
/proc/meminfo: memFree=1080440/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=482704 CPUtime=221.25
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 124242 656 0 0 22058 67 0 0 25 0 1 0 58971171 494288896 119318 996147200 134512640 135215973 4294956304 18446744073709551615 134600822 0 0 4096 0 0 0 0 17 0 0 0
/proc/18763/statm: 120676 119318 408 171 0 119601 0
Current children cumulated CPU time (s) 221.25
Current children cumulated vsize (KiB) 482704

[startup+282.302 s]
/proc/loadavg: 1.99 1.98 1.99 3/76 18906
/proc/meminfo: memFree=948024/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=621112 CPUtime=280.99
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 159928 656 0 0 28011 88 0 0 25 0 1 0 58971171 636018688 150394 996147200 134512640 135215973 4294956304 18446744073709551615 134632070 0 0 4096 0 0 0 0 17 0 0 0
/proc/18763/statm: 155278 150394 408 171 0 154203 0
Current children cumulated CPU time (s) 280.99
Current children cumulated vsize (KiB) 621112

[startup+342.301 s]
/proc/loadavg: 1.99 1.98 1.99 3/76 18906
/proc/meminfo: memFree=799736/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=752648 CPUtime=340.72
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 193814 656 0 0 33966 106 0 0 25 0 1 0 58971171 770711552 184280 996147200 134512640 135215973 4294956304 18446744073709551615 4158960033 0 0 4096 0 0 0 0 17 0 0 0
/proc/18763/statm: 188162 184280 408 171 0 187087 0
Current children cumulated CPU time (s) 340.72
Current children cumulated vsize (KiB) 752648

[startup+402.301 s]
/proc/loadavg: 1.99 1.98 1.99 3/76 18906
/proc/meminfo: memFree=648376/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=882228 CPUtime=400.47
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 227223 656 0 0 39923 124 0 0 25 0 1 0 58971171 903401472 217689 996147200 134512640 135215973 4294956304 18446744073709551615 134589892 0 0 4096 0 0 0 0 17 0 0 0
/proc/18763/statm: 220557 217689 408 171 0 219482 0
Current children cumulated CPU time (s) 400.47
Current children cumulated vsize (KiB) 882228



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+421.203 s]
/proc/loadavg: 1.99 1.98 1.99 3/76 18906
/proc/meminfo: memFree=600056/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=921856 CPUtime=419.29
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4194304 237452 656 0 0 41801 128 0 0 25 0 1 0 58971171 943980544 227918 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 0 0 0
/proc/18763/statm: 230464 227918 408 171 0 229389 0
Current children cumulated CPU time (s) 419.29
Current children cumulated vsize (KiB) 921856

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Solver just ended. Dumping a history of the last processes samples

[startup+421.312 s]
/proc/loadavg: 1.99 1.98 1.99 3/76 18906
/proc/meminfo: memFree=600056/2055920 swapFree=4192812/4192956
[pid=18763] ppid=18761 vsize=0 CPUtime=419.39
/proc/18763/stat : 18763 (pcs.big) R 18761 18763 17311 0 -1 4195332 237452 656 0 0 41801 138 0 0 25 0 1 0 58971171 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/18763/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 419.39
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 421.349
CPU time (s): 419.45
CPU user time (s): 418.017
CPU system time (s): 1.43278
CPU usage (%): 99.5494
Max. virtual memory (cumulated for all children) (KiB): 921856

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 418.017
system time used= 1.43278
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 238108
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 18
involuntary context switches= 5555

runsolver used 0.437933 second user time and 1.19582 second system time

The end

Launcher Data 

Begin job on node68 at 2009-07-16 06:38:05
IDJOB=2080922
IDBENCH=57194
IDSOLVER=734
FILE ID=node68/2080922-1247719085
PBS_JOBID= 9521429
Free space on /tmp= 66420 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/langford3/normalized-langford-3-20.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2080922-1247719085/watcher-2080922-1247719085 -o /tmp/evaluation-result-2080922-1247719085/solver-2080922-1247719085 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 314682676 HOME/instance-2080922-1247719085.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= fec005d2a500e2d8486cf239a4a9cc0f
RANDOM SEED=314682676

node68.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.258
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.258
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1356176 kB
Buffers:         71300 kB
Cached:         266116 kB
SwapCached:          0 kB
Active:         367924 kB
Inactive:       263364 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1356176 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2292 kB
Writeback:           0 kB
Mapped:         305660 kB
Slab:            53036 kB
Committed_AS:   880964 kB
PageTables:       2520 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66416 MiB
End job on node68 at 2009-07-16 06:45:08